Fix the claims page's mismatched control heights, and separate approve/reject

Two things, found together while looking at the row of controls under each
pending claim.

The child dropdown stood taller than the btn-sm/input-sm around it because
ClaimReviewForm.child hardcoded its own class="select select-bordered w-full"
on the widget. templatetags/field.html's select branch already builds the
full class list itself (base classes + the size modifier), so the widget's
own class rendered as a second, non-merging class="..." attribute right next
to the generated one -- select-sm was in the markup, just shadowed by a
duplicate attribute the browser never applied. No other Select field in the
app hardcodes a class this way, which is why nothing else had the problem.
Fixed by dropping it and passing size="small" through {% form_field %}
instead, the same way every other compact inline select in the app does.

Also pulled Approve and Reject apart with justify-between rather than letting
both sit in one flex-wrap run, so they stay on opposite sides of the row
(and don't end up adjacent on a wrap) rather than one stray click apart.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

members/forms.py

@@ -29,7 +29,11 @@ class ClaimReviewForm(forms.Form):
     never quietly re-parent a child who already has one.
     """
 
-    child = forms.ModelChoiceField(queryset=None, label=_("Link to"), widget=forms.Select(attrs={"class": "select select-bordered w-full"}))
+    # No hardcoded "class" here -- templatetags/field.html's own select branch
+    # already builds the full class list (including the size modifier), and a
+    # class baked into the widget attrs would render a second, conflicting
+    # class="..." on the <select> alongside it rather than merging with it.
+    child = forms.ModelChoiceField(queryset=None, label=_("Link to"), widget=forms.Select())
 
     def __init__(self, *args, candidates=None, **kwargs):
         super().__init__(*args, **kwargs)